Gunlock



Oct. 4, 1927. 1,643,952

A. R. LERRO GUN LOCK Filed Oct. 26. 1926 2 8heets-Sheet I Wilzzass as 720676101 J j rm.

Patented Oct I {1,

UNIT E S T S ANGELO BAFFAELE LERRO, OF PHILADELPHIA, PENNSYLVANIA. I

GUNLOCK.

Application filed October 26, 1926 Serial No. 144,234.

My invention relates to guns and more particularly to locks of double barrel shot guns of the so-called hammerless type.

In the conventional type of gun, two

triggers are disposed within a trigger guard with sufiicient space between them for the insertion, of a finger by the user. This results in the gun stock being gripped with only the thumb and two fingers and the for- .ward triggerbeingso far ahead of the rear edge of the trigger guard that it is di'flicult -to reach by persons having short fingers.

' One of the objects of my invention lS to provide a gun lock in which but one trigger 16 is placed within the trigger guard, thus bringing it within easy reach of the user and allowing him the use of three fingers lIl gripping the gun stock.

safety catch is provided on the top frame member of the ordinary gun which must be moved to release the triggers before firing the gun; the cooking of the gun having automatically set the safety catch. As it is V dangerous to carry a gun fully cocked with- .26 out the safety device being set, this construction requires that an extra movement be made to release a safety catch before firing'the gun. WVhen game is sighted, the releasing of the safety catch is sometlmes overlooked or forgotten, particularly by persons who use guns infrequently, with the result that a chance to shoot is missed.

Another object of my invention is to. so place the safety catch that gripping the gun stock in the usual manner will release it and .place the gun in condition to fire.

These objects, and other advantageous ends which will be described hereinafter, I attain in the following manner, reference being had to the accompanying drawings in which Figure 1 is a fragmentary view, partly in section, of the left side of a shot gun embodying my invention,

Figure 2 a view of the right side of the gun part shown in Figure 1,

Figure 3 a view taken on line 3-3 of Figure 2,

Figure 4 a view similar to Figure 2 but showing the moving parts in a differentposition,

Figure 5 a view taken on line 5-5 of Figure. 2, and

Figures 6, 7, and 8 views of certain de- '55 tails.

As the parts of a shot gun are well known in the art and form no part of this invention, they will only be herein described to the extent necessary to a full explanation of my invention.

Referring now to the drawings, 10 is the frame of a gun having a top frame member 11 and a bottom frame member 12. A trigger guard 13 is secured to the bottom frame member in the usual manner and has a slot formed therein, through which extends the finger piece of a safety catch 14:. Also mounted in the bottom frame 12 and extending into the trigger guard 13, is a trigger 15 which is very similar to the trigger employed in the ordinary gun. Secured to the inner side of the bottom frame member 12 is a bearing 16 having a pair of upstanding flanges 17 carrying a pin 18. The bottom part of the bearing 16 is'slotted to receive the upstanding part 19 of the safety catch 14, in which is formed a slot 20 to ac commodate the pin 18. A separating sleeve 21 surrounds the part 19 and is secured in place between the bearing flanges 17 by the pin 18. Between the separator 21 and the bearing flange 17, a trip lever 22 is rockably mounted on the pin 18 and has a forwardly extending portion 23 adapted to engage the under side of hammer trip 24, which is held in its lower position by a spring 25. The trip lever 22 extends upwardly through a slot 26 in the top frame member 11 and ends in a hookedshaped part having an aperture 27. A top trigger 28, havinga longitudinal groove 29 formed in its under side, is slidably mounted on the upper frame member 11 by means of a bolt 30 passing through a slot 26 formed in frame member 11 just back of slot 26. A pin 31 passes through suitable openings in the forward end of the trigger 28 and through the aperture 27 in the top of the trip lever 22. At a point between aperture 27 and an aperture 32, by means of which it is mounted on the pin 18 in bearing 16, a lug 33 is formed on the side of the lever 22, which is adapted to engage a slot 34 in safety catch 14. The finger piece of safety catch 14 is provided with a recess 35 in which is disposed a coiled spring 36 having its other end disposed in a corresponding recess in the bottom frame member 12 and which tends to hold the safety catch in its lowermost position so that the lug 33 is firmly held in the slot 34:.

To discharge the left hand barrel of the gun, the safety catch 14: is raised by the 'fingers coming in'contact with the finger piece, thus raising slot 34 above lug 33, and the thumb placed on top trigger 28 which is then pulled rearwardly. As the '17? On the side of trip lever '37 near its top, there is formed a lug 39 which is adapted to engage a slot 40 in the safety catch 14. The lower part of the trip lever 37 extends forwardly and ends in a point 411 which is adapted to engage the under side of the right hand hammer trip 42 and to rest on a projection 43 on the trigger 15. A spri ng 44 engages the top of hammer trip 42 and tends to hold same in its lower position.'

To discharge the right hand barrel of the gun, thesafety catch 14 is raised, as described above, thus releasing lug 39 from notch 40. 'lriggeir '15 may now be pulled rearwar'dly, which will. raise the projection '43 against the bottom of trip lever '37 and raise hammer trip 42and release the right hand hammer.

i In order to hold the safety catch 14 in alignment, I extend the upstandingpart 19 through the slot 26 inthe topframe and into the groove 29 in the top trigger 28,

thus holding the top of the safety catch against excessive transverse movement. I

In the foregoing descripti'on'I have shown my invention as consisting of parts which maybe readily applied to any of the guns most commonly in use, but it will be readily understood that changes may be made to .adapt .my invention for installation on guns Y at the factory and that other various modifications and alterations might be made without departing from the spirit thereof, and

hence I do not limit myself to the precise construction set forth, but consider that I am at liberty to make such changes and alterations as fairly come within the scope -of the appended claims.

Having thus described Jny invention, what I claim as new and desire to secure :by Letters Patent is 1. In a firearm having a slot in its under frame; a lock iincludinga hammer trip, a'

trip lever engaging the hammer trip, a trigger engaging the trip lever, a safety catch extending upwardly through $17116 .slot

and having'a Inotch, an d a lug formed on the trip lever adapted to engage "the notch.

2. In a firearm having a ,slot in its under-' frame; :a lock including a hammer trip; a bearing on the underframe; a trip lever-rockably mounted vin the bearing and engaging the hammer trip; a safety catch, having i-a notch formed therein, extending upwardly" through the slot and slidable in the bearing; a tr1g'ger engaging the trip lever, and a lug on the trip lever adapted to engage the notch in the safety catch.

' 3. In a firearm having slots in iits f-rameg' the slots and having notches formed therein, and a lug formed on each trip leveradapted to engage a notch in the safetycatch.

4. In a firearm having slots in its frame;

a safety catch extending :upwardly through" a lock including a pair of hammer :trips a slotted bearing onthe frame; trip levers rockably mounted in the bearing and engaging the hammer trips; a bottom trigger engaging one trip lever; a top trigger slidtrip lever; a safety catch, having notches formed therein, extending upwardly through the slots and slidable in the "bearing, and a l-ugon each trip lever adapted to engage a notch in the safety catch.

In testimony whereof 'I have .signediny name to this specification.

ANGELO RAFFAELEE' Lasso.

.able'on the frame and engaging the other 

